320164247 has 12 divisors (see below), whose sum is σ = 367083360. Its totient is φ = 278149248.

The previous prime is 320164211. The next prime is 320164253. The reversal of 320164247 is 742461023.

It is not a de Polignac number, because 320164247 - 2¹⁰ = 320163223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320164277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52847 + ... + 58592.

It is an arithmetic number, because the mean of its divisors is an integer number (30590280).

Almost surely, 2^320164247 is an apocalyptic number.

320164247 is a deficient number, since it is larger than the sum of its proper divisors (46919113).

320164247 is a wasteful number, since it uses less digits than its factorization.

320164247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111482 (or 111469 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 320164247 is about 17893.1340742755. The cubic root of 320164247 is about 684.1073829960.

It can be divided in two parts, 32016 and 4247, that added together give a palindrome (36263).

The spelling of 320164247 in words is "three hundred twenty million, one hundred sixty-four thousand, two hundred forty-seven".